John Williams, DO - Medicare Anesthesiology in Des Moines, IA

John Williams, DO is a medicare enrolled "Anesthesiology" physician in Des Moines, Iowa. He went to Kansas City University Of Physicians And Surgeons and graduated in 2015 and has 9 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Associated Anesthesiologists Pc and his current practice location is 1200 Pleasant St, Des Moines, Iowa. You can reach out to his office (for appointments etc.) via phone at (515) 241-6212.

John Williams is licensed to practice in Iowa (license number DO-05325) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1417334962.

Contact Information

John Williams, DO
1200 Pleasant St,
Des Moines, IA 50309-1406
(515) 241-6212
Not Available

Map and Direction




Physician's Profile

Full NameJohn Williams
GenderMale
SpecialityAnesthesiology
Experience9 Years
Location1200 Pleasant St, Des Moines, Iowa
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John Williams attended and graduated from Kansas City University Of Physicians And Surgeons in 2015
  NPI Data:
  • NPI Number: 1417334962
  • Provider Enumeration Date: 05/05/2015
  • Last Update Date: 06/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 2365748910
  • Enrollment ID: I20190520000367

Medical Identifiers

Medical identifiers for John Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417334962NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 9408565 (Kansas)Secondary
207L00000XAnesthesiology DO-05325 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Unitypoint Health - Des Moines Iowa Methodist MediDes moines, IAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Associated Anesthesiologists Pc963806830758

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. John Williams allows following entities to bill medicare on his behalf.
Entity NameAssociated Anesthesiologists Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215904750
PECOS PAC ID: 9638068307
Enrollment ID: O20040311000774

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John Williams is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John Williams, DO
4201 Westown Pkwy Ste 236,
West Des Moines, IA 50266-6720

Ph: (515) 401-1950
John Williams, DO
1200 Pleasant St,
Des Moines, IA 50309-1406

Ph: (515) 241-6212

Reviews and Comments


Anesthesiology Doctors in Des Moines, IA

Meredith D Crenshaw, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 411 Laurel St, Suite 3170, Des Moines, IA 50314
Phone: 515-283-0463    Fax: 515-283-0794
Eric Nevin Meek, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 411 Laurel St, Suite 3170, Des Moines, IA 50314
Phone: 515-283-0463    Fax: 515-283-0794
James Holmes Bartlett, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 411 Laurel St, Suite 3170, Des Moines, IA 50314
Phone: 515-283-0463    Fax: 515-283-0794
George Lederhaas, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1200 Pleasant St, Des Moines, IA 50309
Phone: 515-241-6372    Fax: 515-401-1955
Robert Seiichi Hada, M.D.
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 1215 Pleasant St, Suite 400, Des Moines, IA 50309
Phone: 515-241-5722    Fax: 515-241-4403
Joseph Metzger, MD
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 1200 Pleasant St, Des Moines, IA 50309
Phone: 515-241-6372    
Christine Ruth Carstensen, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 411 Laurel St, Suite 3170, Des Moines, IA 50314
Phone: 515-283-0463    Fax: 515-283-0794

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.